Question

Q1 )Find the roots of quadratic equation x -3x-10=0.​

Answer 1

Answer:

${x}^{2} - 3x - 10 = 0 \\ \\ = > {x}^{2} - (5 - 2)x - 10 = 0 \\ \\ = > {x}^{2} - 5x + 2x - 10 = 0 \\ \\ = > x(x - 5) + 2(x - 5) = 0 \\ \\ = > (x - 5)(x + 2) = 0 \\ \\ either \: x - 5 = 0 \\ \\ = > x = 5 \\ \\ or \: x + 2 = 0 \\ \\ = > x = - 2$

hope it helps uH :)